What is the XQuery Update Facility?
The XQuery Update Facility is an extension of XQuery 1.0. It adds four updating expressions, delete, insert, rename, and replace. It adds one non-updating expression, the transform expression. XQuery Whiteboard 1.1 and DB2 9.5 both support the transform expression. The updating expressions can be used in the modify clause of the transform expression. XQuery Update Facility 1.0 was published as a W3C Candidate Recommendation on June 9, 2009. It was developed by the XML Query WG.